src/jdk/nashorn/internal/runtime/arrays/NonExtensibleArrayFilter.java

@@ -49,18 +49,10 @@
         }
         return extensionCheck(strict, index);
     }
 
     @Override
-    public ArrayData set(final int index, final long value, final boolean strict) {
-        if (has(index)) {
-            return underlying.set(index, value, strict);
-        }
-        return extensionCheck(strict, index);
-    }
-
-    @Override
     public ArrayData set(final int index, final double value, final boolean strict) {
         if (has(index)) {
             return underlying.set(index, value, strict);
         }
         return extensionCheck(strict, index);